How to find path of the signal source from its name?

Above is the subsystem of my big model, in this I've 2 outports and the path of the subsytem is "MyModel/handle_error/apply_linear", this outports is going to my root of the model "MyModel". If i press "highlight to source" in my required signal at root path, it is taking me to my source.

How to get this via matlab command? Like if i give a signal name "final_output", the command should be able to give path of source "MyModel/handle_error/apply_linear"